---
url: "https://pay.weixin.qq.com/doc/v3/merchant/4012526279-go.md"
title: "查询分账回退结果-请求示例-go"
doc_id: 4012526279
example_lang: "go"
---

## Go


需配合微信支付工具库 wxpay\_utility 使用，请参考 [Go](https://pay.weixin.qq.com/doc/v3/merchant/4015119334.md)

```
package main

import (
	"demo/wxpay_utility" // 引用微信支付工具库，参考 https://pay.weixin.qq.com/doc/v3/merchant/4015119334
	"encoding/json"
	"fmt"
	"net/http"
	"net/url"
	"strings"
	"time"
)

func main() {
	// TODO: 请准备商户开发必要参数，参考：https://pay.weixin.qq.com/doc/v3/merchant/4013070756
	config, err := wxpay_utility.CreateMchConfig(
		"19xxxxxxxx",                 // 商户号，是由微信支付系统生成并分配给每个商户的唯一标识符，商户号获取方式参考 https://pay.weixin.qq.com/doc/v3/merchant/4013070756
		"1DDE55AD98Exxxxxxxxxx",      // 商户API证书序列号，如何获取请参考 https://pay.weixin.qq.com/doc/v3/merchant/4013053053
		"/path/to/apiclient_key.pem", // 商户API证书私钥文件路径，本地文件路径
		"PUB_KEY_ID_xxxxxxxxxxxxx",   // 微信支付公钥ID，如何获取请参考 https://pay.weixin.qq.com/doc/v3/merchant/4013038816
		"/path/to/wxp_pub.pem",       // 微信支付公钥文件路径，本地文件路径
	)
	if err != nil {
		fmt.Println(err)
		return
	}

	request := &QueryReturnOrderRequest{
		OutReturnNo: wxpay_utility.String("R20190516001"),
		OutOrderNo:  wxpay_utility.String("P20190806125346"),
	}

	response, err := QueryReturnOrder(config, request)
	if err != nil {
		fmt.Printf("请求失败: %+v\n", err)
		// TODO: 请求失败，根据状态码执行不同的处理
		return
	}

	// TODO: 请求成功，继续业务逻辑
	fmt.Printf("请求成功: %+v\n", response)
}

func QueryReturnOrder(config *wxpay_utility.MchConfig, request *QueryReturnOrderRequest) (response *ReturnOrdersEntity, err error) {
	const (
		host   = "https://api.mch.weixin.qq.com"
		method = "GET"
		path   = "/v3/profitsharing/return-orders/{out_return_no}"
	)

	reqUrl, err := url.Parse(fmt.Sprintf("%s%s", host, path))
	if err != nil {
		return nil, err
	}
	reqUrl.Path = strings.Replace(reqUrl.Path, "{out_return_no}", url.PathEscape(*request.OutReturnNo), -1)
	query := reqUrl.Query()
	if request.OutOrderNo != nil {
		query.Add("out_order_no", *request.OutOrderNo)
	}
	reqUrl.RawQuery = query.Encode()
	httpRequest, err := http.NewRequest(method, reqUrl.String(), nil)
	if err != nil {
		return nil, err
	}
	httpRequest.Header.Set("Accept", "application/json")
	httpRequest.Header.Set("Wechatpay-Serial", config.WechatPayPublicKeyId())
	authorization, err := wxpay_utility.BuildAuthorization(config.MchId(), config.CertificateSerialNo(), config.PrivateKey(), method, reqUrl.RequestURI(), nil)
	if err != nil {
		return nil, err
	}
	httpRequest.Header.Set("Authorization", authorization)

	client := &http.Client{}
	httpResponse, err := client.Do(httpRequest)
	if err != nil {
		return nil, err
	}
	respBody, err := wxpay_utility.ExtractResponseBody(httpResponse)
	if err != nil {
		return nil, err
	}
	if httpResponse.StatusCode >= 200 && httpResponse.StatusCode < 300 {
		// 2XX 成功，验证应答签名
		err = wxpay_utility.ValidateResponse(
			config.WechatPayPublicKeyId(),
			config.WechatPayPublicKey(),
			&httpResponse.Header,
			respBody,
		)
		if err != nil {
			return nil, err
		}
		response := &ReturnOrdersEntity{}
		if err := json.Unmarshal(respBody, response); err != nil {
			return nil, err
		}

		return response, nil
	} else {
		return nil, wxpay_utility.NewApiException(
			httpResponse.StatusCode,
			httpResponse.Header,
			respBody,
		)
	}
}

type QueryReturnOrderRequest struct {
	OutReturnNo *string `json:"out_return_no,omitempty"`
	OutOrderNo  *string `json:"out_order_no,omitempty"`
}

func (o *QueryReturnOrderRequest) MarshalJSON() ([]byte, error) {
	type Alias QueryReturnOrderRequest
	a := &struct {
		OutReturnNo *string `json:"out_return_no,omitempty"`
		OutOrderNo  *string `json:"out_order_no,omitempty"`
		*Alias
	}{
		// 序列化时移除非 Body 字段
		OutReturnNo: nil,
		OutOrderNo:  nil,
		Alias:       (*Alias)(o),
	}
	return json.Marshal(a)
}

type ReturnOrdersEntity struct {
	OrderId     *string                `json:"order_id,omitempty"`
	OutOrderNo  *string                `json:"out_order_no,omitempty"`
	OutReturnNo *string                `json:"out_return_no,omitempty"`
	ReturnId    *string                `json:"return_id,omitempty"`
	ReturnMchid *string                `json:"return_mchid,omitempty"`
	Amount      *int64                 `json:"amount,omitempty"`
	Description *string                `json:"description,omitempty"`
	Result      *ReturnOrderStatus     `json:"result,omitempty"`
	FailReason  *ReturnOrderFailReason `json:"fail_reason,omitempty"`
	CreateTime  *time.Time             `json:"create_time,omitempty"`
	FinishTime  *time.Time             `json:"finish_time,omitempty"`
}

type ReturnOrderStatus string

func (e ReturnOrderStatus) Ptr() *ReturnOrderStatus {
	return &e
}

const (
	RETURNORDERSTATUS_PROCESSING ReturnOrderStatus = "PROCESSING"
	RETURNORDERSTATUS_SUCCESS    ReturnOrderStatus = "SUCCESS"
	RETURNORDERSTATUS_FAILED     ReturnOrderStatus = "FAILED"
)

type ReturnOrderFailReason string

func (e ReturnOrderFailReason) Ptr() *ReturnOrderFailReason {
	return &e
}

const (
	RETURNORDERFAILREASON_ACCOUNT_ABNORMAL       ReturnOrderFailReason = "ACCOUNT_ABNORMAL"
	RETURNORDERFAILREASON_BALANCE_NOT_ENOUGH     ReturnOrderFailReason = "BALANCE_NOT_ENOUGH"
	RETURNORDERFAILREASON_TIME_OUT_CLOSED        ReturnOrderFailReason = "TIME_OUT_CLOSED"
	RETURNORDERFAILREASON_PAYER_ACCOUNT_ABNORMAL ReturnOrderFailReason = "PAYER_ACCOUNT_ABNORMAL"
	RETURNORDERFAILREASON_INVALID_REQUEST        ReturnOrderFailReason = "INVALID_REQUEST"
)

```
